adding groovy ctags, adding gitv commands to vimrc
Removing false positives from ctags

Instantiation of classes were causing false positives in my ctags files
as expressions that started with a capital letter were getting loaded
into the functions lists, but functions do not start with capital
letters, so this fixes the regex to ignore them.

And example of a false positive was something like

        new Thing(attrib: 'value')

was getting marked as a function call to `Thing`